Scientists have responded in a big way to NASA's call to help reformulate its Mars robotic exploration strategy, submitting about 400 ideas and Red Planet mission concepts to the space agency. [Full Story]

NEXT: Ashes of Star Trek's 'Scotty' Ride Private Rocket

Ashes of Star Trek's 'Scotty' Ride Private Rocket Into Space

SpaceX

When it launched this morning, SpaceX's rocket was carrying celebrity ashes in addition to its cargo bound for the International Space Station. [Full Story]